'''
Example 1 for Pi Pico W I2C LCD: Display
References:
  [1] https://github.com/Guitarman9119/Raspberry-Pi-Pico-/tree/main/I2C%2016x2%20LCD%20Circuit%20Python

Additional Library:
- lcd.py from [1]
- i2c_pcf8574_interface.py from [1]
'''
import board
import time
import busio
import digitalio
# Needs these 2 libraries from Guitarman9119 Github
# Upload it to the 'Lib'
import lcd
import i2c_pcf8574_interface

i2c = busio.I2C(scl=board.GP1, sda=board.GP0)
address = 0x27 #0x3F
i2c = i2c_pcf8574_interface.I2CPCF8574Interface(i2c, address)
display = lcd.LCD(i2c, num_rows=2, num_cols=16)
display.set_backlight(True)
display.set_display_enabled(True)

while True:
    display.clear()
    display.set_cursor_pos(0, 0)
    display.print("CircuitPython\nI2C LCD")
    time.sleep(2)
    display.clear()
    display.set_cursor_pos(1, 0)
    display.print("Example = {:5.2f}".format(23.456))
    time.sleep(2)